Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce9eed0383beb9b5…

MALICIOUS

PDF

60.3 KB Created: 2020-08-24 17:16:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7cd13a0ab4ef654e9b3f48147d1b515a SHA-1: fa96bc1a98148185a562fb6c80b528b865fff42d SHA-256: ce9eed0383beb9b5f7b329ca95d0a19411a4c52055ba7170c9e8dfd5187efcd3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, which is indicative of a link farm or SEO poisoning attempt. One of these links, 'https://ttraff.ru/pify?keyword=witold+pilecki+report', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=witold+pilecki+report In PDF document text
    • http://files.mycrownmusic.net/uploads/1/3/0/7/130740252/vivufewupimexides.pdfIn PDF document text
    • http://files.bigapplecaroffice.com/uploads/1/3/0/8/130813818/fekumasipamiva.pdfIn PDF document text
    • http://files.wrawpg.ca/uploads/1/3/0/7/130740257/1363419.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/judik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5397/files/satupawoxaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5809/4495/files/43322398476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1384/7710/files/nejata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/91135520716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2821/5968/files/probability_mass_function_cdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4945/0661/files/gopubanetavedowizegojut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/72629638993.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b225.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB225 4756 bytes
SHA-256: 48d46b57b31579acdd5e8cd0a22900f0a8e46fd8f7a9a1b62ff57dcc19730124
font_01_sfnt_off0000c272.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC272 9996 bytes
SHA-256: 68104624b2c7ff5ff7b2885c435fef78d51b35a89273ec06c9c1991877d24636

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